Review

001-평균 구하기.java

@@ -0,0 +1,10 @@
+double solution(int arr[], size_t arr_len) {
+     int sum = 0;
+     for (int i = 0; i < arr_len; i++) {
+         sum += arr[i];
+     }
+
+     double answer =  (double) sum / arr_len;
+
+     return answer;
+ }

002-짝수와홀수.java

@@ -0,0 +1,10 @@
+class Solution {
+    public String solution(int num) {
+
+        if (num % 2 == 0) {
+            return ("Even");
+        } else {
+            return("Odd");
+        }
+    }
+}

003-자릿수 더하기.java

@@ -0,0 +1,14 @@
+import java.util.*;
+
+public class Solution {
+    public int solution(int n) {
+        int answer = 0;
+
+        String s = Integer.toString(n);
+
+        for(int i=0; i < s.length(); i++){
+            answer += Integer.parseInt(s.substring(i, i+1));
+        }
+        return answer;
+    }
+}